Home / 13,297.50-18,336.92-8,761.37

Finding the Fourth Proportional to 13,297.50, 18,336.92 and 8,761.37

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Solution

The fourth proportional to 13,297.50, 18,336.92 and 8,761.37 is: 12,081.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,297.50 : 18,336.92 = 8,761.37 : x
  2. Step 2: Convert to fraction form
    13,297.50/18,336.92 = 8,761.37/x
  3. Step 3: Cross multiply
    13,297.50x = 18,336.92 × 8,761.37
  4. Step 4: Simplify right side
    13,297.50x = 160,656,405.29
  5. Step 5: Solve for x
    x = 160,656,405.29/13,297.50
  6. Step 6: Final answer
    x = 12,081.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.